package com.itheima.service;

import com.itheima.pojo.Member;

import java.util.List;

/**
 * @author benben278
 * @create 2022-03-18 10:10
 */
public interface MemberService {
    public void add(Member member);
    //根据手机号查询会员
    public Member findByTelephone(String telephone);
    //根据月份查询会员数量
    List<Integer> findMemberCountByMonth(List<String> month);
}
